Modular infusion pump

Abstract

A modular infusion pump for administering a product, including a pump housing, a reservoir to contain the product, a delivery device associated with the pump housing to deliver the product from the reservoir, an energy source for the delivery device, another housing separate from the pump housing for receiving the energy source, and a transmission for transmitting energy from the energy source to the delivery device.

The invention claimed is: 
     
       1. A modular infusion pump for administering a product, said infusion pump comprising:
 a) a pump housing comprising a main housing and a secondary housing releasably secured to the main housing by a coupling, the secondary housing comprising an underside for contacting human or animal skin and defines a cavity of a diaphragm that is separate from the main housing, 
 b) a reservoir to contain the product, said reservoir received in or formed by the main housing, 
 c) a delivery device housed in the pump housing for delivering the product from the reservoir, 
 d) an energy source for the delivery device, 
 e) a further housing separate from the pump housing, said further housing receiving the energy source, and 
 f) a transmission device for transmitting energy from the energy source to the delivery device; and 
 g) the cavity joining a connecting cannula and an infusion cannula that are physically separate, the connecting cannula that penetrates a septum which closes an outlet of the reservoir, and at an opposite downstream end of the connecting cannula, the connecting cannula penetrates a side wall of the diaphragm and protrudes into the cavity of the diaphragm; 
 h) a puncture needle placeable entirely through the diaphragm; and 
 i) the infusion cannula upstream end protrudes into the cavity, the infusion cannula bearing around the puncture needle so that, as the puncture needle punctures the skin, it is introduced along with the puncture needle into the body tissue, and after the infusion cannula has been introduced, the puncture needle is withdrawn from the body tissue and from the infusion cannula and from the diaphragm, and after withdrawal of the puncture needle, the diaphragm still seals the cavity joining the connecting cannula and the infusion cannula. 
 
     
     
       2. The modular infusion pump as claimed in  claim 1 , wherein the infusion pump comprises a control device with a power section via which the energy source supplies the delivery device with energy, the power section contained the further housing. 
     
     
       3. The modular infusion pump as claimed in  claim 1 , wherein the infusion pump comprises a control device with an interrupter in order to interrupt the energy supply to the delivery device in a controlled manner, the interrupter contained in the further housing. 
     
     
       4. The modular infusion pump as claimed in  claim 1 , further comprising a detector arranged in or on the pump housing for detecting a physical parameter of the delivery device or of a product-carrying part, said detector sending to a control device of the infusion pump an output signal (D 14 , D 15 ) representing the detected parameter, as a function of which the control device provides an actuating signal (S 8 ) for the delivery device. 
     
     
       5. The modular infusion pump as claimed in  claim 4 , wherein the energy source supplies the detector with energy via an interrupter which the control device controls by means of an actuating signal (S 13 , S 15 ). 
     
     
       6. The modular infusion pump as claimed in  claim 5 , wherein the interrupter is arranged in the further housing. 
     
     
       7. The modular infusion pump as claimed in  claim 4 , wherein the detector is one of a position sensor or speed sensor which detects, respectively, a position or a speed of the delivery device, the output signal (D 14 ) of the detector representing the detected position or speed. 
     
     
       8. The modular infusion pump as claimed in  claim 4 , wherein the detector is at least one of an occlusion and leak detector which detects, respectively, an occlusion or a leak in a product-carrying part of the infusion pump extending from the reservoir as far as an outlet of an infusion cannula. 
     
     
       9. The modular infusion pump as claimed in  claim 4 , wherein the detector is a flow detector arranged in line with an infusion cannula in a product-carrying part of the infusion pump. 
     
     
       10. The modular infusion pump as claimed in  claim 1 , further comprising an energy supply system comprising the energy source and a means for energy transmission in or on the pump housing. 
     
     
       11. The modular infusion pump as claimed in  claim 1 , further comprising an energy supply system for the infusion pump, said energy supply system comprising the energy source and a means for energy transmission in or on the pump housing. 
     
     
       12. The modular infusion pump as claimed in  claim 1 , further comprising a control and energy supply system for the delivery device, said control and energy supply system comprising the energy source, a control device and means for energy transmission and signal transmission in or on the pump housing. 
     
     
       13. The modular infusion pump as claimed in  claim 1 , wherein the delivery device comprises a motor and at least one delivery member driven by the motor to deliver the product, the energy source supplying the motor with required energy. 
     
     
       14. The modular infusion pump as claimed in  claim 1 , wherein the pump housing and the further housing are connected to one another by means of at least one energy supply line. 
     
     
       15. The modular infusion pump as claimed in  claim 14 , wherein the energy supply line comprises a wire and the entire energy transmission between the pump housing and the further housing is via the wire. 
     
     
       16. The modular infusion pump as claimed in  claim 1 , wherein the pump housing and the further housing are connected to one another by means of at least one signal line. 
     
     
       17. The modular infusion pump as claimed in  claim 16 , wherein the at least one signal line comprises at least one wire and the entire signal transmission between the pump housing and the further housing is via the at least one wire. 
     
     
       18. The modular infusion pump as claimed in  claim 1 , wherein the infusion cannula protrudes from the underside of the secondary housing only by the cannula length to be introduced into or through the skin. 
     
     
       19. The modular infusion pump as claimed in  claim 1 , wherein the reservoir and the infusion cannula are connected by an angle adapter arranged in or on the secondary housing. 
     
     
       20. The modular infusion pump as claimed in  claim 1 , wherein the secondary housing is moveably and guidedly secured to the main housing. 
     
     
       21. A modular infusion pump for administering a product, said infusion pump comprising:
 a) a pump housing comprising a main housing and a secondary housing releasably secured to the main housing by a mechanical coupling, the secondary housing defines a cavity of a diaphragm that is separate from the main housing, and the main housing and the secondary housing forming a common substantially smooth underside for contacting human or animal skin, 
 b) a reservoir to contain the product, said reservoir received in or formed by the main housing, 
 c) a delivery device housed in the main housing for delivering the product from the reservoir, 
 d) an energy source for the delivery device, 
 e) a further housing separate from the pump housing, said further housing receiving the energy source, 
 f) a transmission device for transmitting energy from the energy source to the delivery device; and 
 g) the cavity joining a connecting cannula and an infusion cannula that are physically separate, the connecting cannula that penetrates a septum which closes an outlet of the reservoir, and at an opposite downstream end of the connecting cannula, the connecting cannula penetrates a side wall of the diaphragm and protrudes into the cavity of the diaphragm; 
 h) a puncture needle placeable entirely through the diaphragm; and 
 i) the infusion cannula upstream end protrudes into the cavity, the infusion cannula bearing around the puncture needle so that, as the puncture needle punctures the skin, it is introduced along with the puncture needle into the body tissue, and after the infusion cannula has been introduced, the puncture needle is withdrawn from the body tissue and from the infusion cannula and from the diaphragm, and after withdrawal of the puncture needle, the diaphragm still seals the cavity joining the connecting cannula and the infusion cannula. 
 
     
     
       22. The modular infusion pump as claimed in  claim 21 , wherein the flexible infusion cannula is coupled to the secondary housing such that the flexible infusion cannula is substantially fixed relative to the secondary housing. 
     
     
       23. The modular infusion pump as claimed in  claim 21 , wherein the delivery device comprises a motor and at least one delivery member driven by the motor to deliver the product, the energy source supplying the motor with required energy.